Reviewers have found that Comcast connections are reliable as of 2015, finding very little downtime with consistent download and upload speeds across the board. The main criticism with Comcast is that tech support is lacking or fairly poor quality in some of the areas where the service is available.
Comcast is ranked as one of the fastest cable providers in the United States, beating out several of its competitors, such as AT&T and Cable One. Some Comcast packages include Internet security features as well as higher connection speeds. Reviews cite the price as well as the tech support as possible issues, but mention that the reliable and fast connection is worth the price.